Question

B. crust
8. Among the subsystems, which is composed of a mixture of gases that
surrounds the Earth?
A. nitrogen
C. biosphere
B. atmosphere
D. kingdoms
nitrogen and
oxygen
of​

Answer 1

B. crust

8. Among the subsystems, which is composed of a mixture of gases that

surrounds the Earth?

A. nitrogen

C. biosphere

B. atmosphere

D. kingdoms

nitrogen and

oxygen

of

answer.,. ....

atmosphere

Answer 2

Answer:

b.atmosphere

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